QTL detection for flowering time in faba bean and the responses to ambient temperature and photoperiod

Catt, Samuel C.; Braich, Shivraj; Kaur, Sukhjiwan; Paull, J. G.

doi:10.1007/s10681-017-1910-8

Cited by 23 publications

(19 citation statements)

References 32 publications

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“…Importantly, lines have been detected with greater variation in photoperiod and temperature response than observed in the QTL study run alongside this one (Catt et al 2017). Together with further studies to understand better the mechanisms behind the environmental responses (particularly vernalisation, and optimum temperatures), the loci (and corresponding markers and candidate genes) implicit in conferring the variation in temperature and photoperiod response seen in this study could be identified using lines that represent the greater variation as parents in future QTL mapping populations.…”

Section: Discussionmentioning

confidence: 91%

“…Further to this, supra-optimal temperatures have been observed to delay flowering for some species and in a study in wheat (Triticum aestivum L.) by Appendino and Slafer (2003), allelic variation at one gene determined whether a plant would have the same TTF in both 16°C and 23°C, or would flower in 342 degree-days less under 16°C than 23°C. A study run simultaneously to this one (Catt et al 2017) focussed on detecting quantitative trait loci (QTL) for flowering time and responses to photoperiod and ambient temperature. The study detected eight regions of flowering QTL in an Icarus × Ascot recombinant inbred line population with four of the regions found to be associated with photoperiod response and two of the regions associated with temperature response.…”

Section: Introductionmentioning

confidence: 99%

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Effects of ambient temperature and photoperiod on flowering time in faba bean (Vicia faba L.)

Catt¹,

Paull²

2017

Crop Pasture Sci.

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Green Open AccessAll journals published by CSIRO Publishing allow authors to deposit the Accepted version of their manuscript into an institutional repository or put it on a personal website, with no embargo.The Accepted version is the author-created, peer-reviewed, accepted manuscript. The Publisher's edited or typeset versions cannot be used. The institutional repository should be that of the institution employing the author at the time the work was conducted or PubMed Central. We ask that authors link to the published version on the CSIRO Publishing website, wherever possible. April 2018Publisher

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Section: Discussionmentioning

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Effects of ambient temperature and photoperiod on flowering time in faba bean (Vicia faba L.)

Catt¹,

Paull²

2017

Crop Pasture Sci.

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“…For example, in chickpea or lentil, major QTLs corresponding to flowering time have been reported 26 – 31 , but only in a few cases 32 , the orthology with other crops or model species has been assessed. In case of faba bean, just a few QTL analyses for flowering time have been reported 33 – 36 but no information on the underlying genes and possible orthology, is currently available.…”

Section: Introductionmentioning

confidence: 99%

Linkage mapping and QTL analysis of flowering time in faba bean

Aguilar-Benitez

Casimiro-Soriguer

Maalouf³

et al. 2021

Sci Rep

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Flowering time marks the transition from vegetative to reproductive growth and is key for optimal yield in any crop. The molecular mechanisms controlling this trait have been extensively studied in model plants such as Arabidopsis thaliana and rice. While knowledge on the molecular regulation of this trait is rapidly increasing in sequenced galegoid legume crops, understanding in faba bean remains limited. Here we exploited translational genomics from model legume crops to identify and fine map QTLs linked to flowering time in faba bean. Among the 31 candidate genes relevant for flowering control in A. thaliana and Cicer arietinum assayed, 25 could be mapped in a segregating faba bean RIL population. While most of the genes showed conserved synteny among related legume species, none of them co-localized with the 9 significant QTL regions identified. The FT gene, previously implicated in the control of flowering time in numerous members of the temperate legume clade, mapped close to the most relevant stable and conserved QTL in chromosome V. Interestingly, QTL analysis suggests an important role of epigenetic modifications in faba bean flowering control. The new QTLs and candidate genes assayed here provide a robust framework for further genetic studies and will contribute to the elucidation of the molecular mechanisms controlling this trait.

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“…Similarly, in fava bean (Vicia faba) under SD-HT many small QTLs were revealed compared to LD conditions (Catt et al 2017 Bolting-owering QTLs on chromosome 2 have been mapped in other RIL populations from inter and intra speci c crosses and qBFr2.1 consistently had a signi cant additive effect in high temperature (HT) conditions (Hartman et al 2012;Jenni et al 2013). Furthermore, an L. serriola accession used in previous bolting studies (Hartman et al 2012) had the same P allele for marker LZ001, linked to the qBFr2.1, as PI 251246.…”

Section: Discussionmentioning

confidence: 99%

Mapping and Identification of Genetic Loci Affecting Earliness of Bolting and Flowering in Lettuce

Rosental

Still

You

et al. 2021

Preprint

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Bolting, defined as stem elongation, marks the plant life cycle transition from vegetative to reproductive stage. Lettuce is grown for its leaf rosettes, and premature bolting may reduce crop quality resulting in economic losses. The transition to reproductive stage is a complex process that involves many genetic and environmental factors. In this study the effects of photoperiod and ambient temperature on bolting and flowering regulation was studied by utilizing a lettuce mapping population to identify quantitative trait loci (QTL) and by gene expression analyses of genotypes with contrasting phenotypes. A recombinant inbred line (RIL) population, derived from a cross between PI251246 (early bolting) and cv. Salinas (late bolting), was grown in four combinations of short (8 hours) and long (16 hours) days and low (20°C) and high (35°C) temperature. QTL models revealed both genetic (G) and environmental (E) effects, and GxE interactions. A major QTL for bolting and flowering time was found on chromosome 7 (qFLT7.2) and two candidate genes were identified by fine mapping, homology and gene expression studies. In short days and high temperature conditions qFLT7.2 had no effect on plant development, while several small-effect loci on chromosomes 2, 3, 6, 8 and 9 were associated with bolting and flowering. Of these, the QTL on chromosome 2, qBFr2.1, co-located with the Flowering Locus T (LsFT) gene. Polymorphisms between parent genotypes in the promotor region may explain identified gene expression differences, and were used to design a genetic marker which may be used to identify the late bolting trait.

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QTL detection for flowering time in faba bean and the responses to ambient temperature and photoperiod

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Cited by 23 publications

References 32 publications

Effects of ambient temperature and photoperiod on flowering time in faba bean (Vicia faba L.)

Effects of ambient temperature and photoperiod on flowering time in faba bean (Vicia faba L.)

Linkage mapping and QTL analysis of flowering time in faba bean

Mapping and Identification of Genetic Loci Affecting Earliness of Bolting and Flowering in Lettuce

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